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go-astiav/pixel_format.go
Maizer 15c6928fe3 Add AVPixFmtDescriptor to retrieve flags for AVPixelFormat (#154) 
* 1. Adds hardware_frames_constraints to retrieve valid HWPixelFormats and SWPixelFormats for specific hardware frame configurations.

2. Implements a HardwareFramesConstraints method in hardware_device_context to obtain these constraints for a given hardware frames context.

* Add AVPixFmtDescriptor to retrieve flags for AVPixelFormat

feat(PixelFormat): Expose `AVPixFmtDescriptor` via `Descriptor()` method

This commit introduces support for `AVPixFmtDescriptor`, which provides
detailed information about an `AVPixelFormat`, including its flags.

A new `Descriptor()` method has been added to the `PixelFormat` type
(or class) to retrieve its corresponding `AVPixFmtDescriptor`. This allows
for easier access to extended properties of pixel formats.
2025-05-23 16:01:02 +02:00

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package astiav
//#include <libavcodec/avcodec.h>
//#include <libavutil/avutil.h>
//#include <libavutil/pixdesc.h>
//#include <libavutil/pixfmt.h>
import "C"
import "unsafe"
// https://ffmpeg.org/doxygen/7.0/pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5
type PixelFormat C.enum_AVPixelFormat
const (
PixelFormat0Bgr = PixelFormat(C.AV_PIX_FMT_0BGR)
PixelFormat0Rgb = PixelFormat(C.AV_PIX_FMT_0RGB)
PixelFormatAbgr = PixelFormat(C.AV_PIX_FMT_ABGR)
PixelFormatArgb = PixelFormat(C.AV_PIX_FMT_ARGB)
PixelFormatAyuv64Be = PixelFormat(C.AV_PIX_FMT_AYUV64BE)
PixelFormatAyuv64Le = PixelFormat(C.AV_PIX_FMT_AYUV64LE)
PixelFormatBayerBggr16Be = PixelFormat(C.AV_PIX_FMT_BAYER_BGGR16BE)
PixelFormatBayerBggr16Le = PixelFormat(C.AV_PIX_FMT_BAYER_BGGR16LE)
PixelFormatBayerBggr8 = PixelFormat(C.AV_PIX_FMT_BAYER_BGGR8)
PixelFormatBayerGbrg16Be = PixelFormat(C.AV_PIX_FMT_BAYER_GBRG16BE)
PixelFormatBayerGbrg16Le = PixelFormat(C.AV_PIX_FMT_BAYER_GBRG16LE)
PixelFormatBayerGbrg8 = PixelFormat(C.AV_PIX_FMT_BAYER_GBRG8)
PixelFormatBayerGrbg16Be = PixelFormat(C.AV_PIX_FMT_BAYER_GRBG16BE)
PixelFormatBayerGrbg16Le = PixelFormat(C.AV_PIX_FMT_BAYER_GRBG16LE)
PixelFormatBayerGrbg8 = PixelFormat(C.AV_PIX_FMT_BAYER_GRBG8)
PixelFormatBayerRggb16Be = PixelFormat(C.AV_PIX_FMT_BAYER_RGGB16BE)
PixelFormatBayerRggb16Le = PixelFormat(C.AV_PIX_FMT_BAYER_RGGB16LE)
PixelFormatBayerRggb8 = PixelFormat(C.AV_PIX_FMT_BAYER_RGGB8)
PixelFormatBgr0 = PixelFormat(C.AV_PIX_FMT_BGR0)
PixelFormatBgr24 = PixelFormat(C.AV_PIX_FMT_BGR24)
PixelFormatBgr4 = PixelFormat(C.AV_PIX_FMT_BGR4)
PixelFormatBgr444Be = PixelFormat(C.AV_PIX_FMT_BGR444BE)
PixelFormatBgr444Le = PixelFormat(C.AV_PIX_FMT_BGR444LE)
PixelFormatBgr48Be = PixelFormat(C.AV_PIX_FMT_BGR48BE)
PixelFormatBgr48Le = PixelFormat(C.AV_PIX_FMT_BGR48LE)
PixelFormatBgr4Byte = PixelFormat(C.AV_PIX_FMT_BGR4_BYTE)
PixelFormatBgr555Be = PixelFormat(C.AV_PIX_FMT_BGR555BE)
PixelFormatBgr555Le = PixelFormat(C.AV_PIX_FMT_BGR555LE)
PixelFormatBgr565Be = PixelFormat(C.AV_PIX_FMT_BGR565BE)
PixelFormatBgr565Le = PixelFormat(C.AV_PIX_FMT_BGR565LE)
PixelFormatBgr8 = PixelFormat(C.AV_PIX_FMT_BGR8)
PixelFormatBgra = PixelFormat(C.AV_PIX_FMT_BGRA)
PixelFormatBgra64Be = PixelFormat(C.AV_PIX_FMT_BGRA64BE)
PixelFormatBgra64Le = PixelFormat(C.AV_PIX_FMT_BGRA64LE)
PixelFormatCuda = PixelFormat(C.AV_PIX_FMT_CUDA)
PixelFormatD3D11 = PixelFormat(C.AV_PIX_FMT_D3D11)
PixelFormatD3D11VaVld = PixelFormat(C.AV_PIX_FMT_D3D11VA_VLD)
PixelFormatDrmPrime = PixelFormat(C.AV_PIX_FMT_DRM_PRIME)
PixelFormatDxva2Vld = PixelFormat(C.AV_PIX_FMT_DXVA2_VLD)
PixelFormatGbr24P = PixelFormat(C.AV_PIX_FMT_GBR24P)
PixelFormatGbrap = PixelFormat(C.AV_PIX_FMT_GBRAP)
PixelFormatGbrap10Be = PixelFormat(C.AV_PIX_FMT_GBRAP10BE)
PixelFormatGbrap10Le = PixelFormat(C.AV_PIX_FMT_GBRAP10LE)
PixelFormatGbrap12Be = PixelFormat(C.AV_PIX_FMT_GBRAP12BE)
PixelFormatGbrap12Le = PixelFormat(C.AV_PIX_FMT_GBRAP12LE)
PixelFormatGbrap16Be = PixelFormat(C.AV_PIX_FMT_GBRAP16BE)
PixelFormatGbrap16Le = PixelFormat(C.AV_PIX_FMT_GBRAP16LE)
PixelFormatGbrapf32Be = PixelFormat(C.AV_PIX_FMT_GBRAPF32BE)
PixelFormatGbrapf32Le = PixelFormat(C.AV_PIX_FMT_GBRAPF32LE)
PixelFormatGbrp = PixelFormat(C.AV_PIX_FMT_GBRP)
PixelFormatGbrp10Be = PixelFormat(C.AV_PIX_FMT_GBRP10BE)
PixelFormatGbrp10Le = PixelFormat(C.AV_PIX_FMT_GBRP10LE)
PixelFormatGbrp12Be = PixelFormat(C.AV_PIX_FMT_GBRP12BE)
PixelFormatGbrp12Le = PixelFormat(C.AV_PIX_FMT_GBRP12LE)
PixelFormatGbrp14Be = PixelFormat(C.AV_PIX_FMT_GBRP14BE)
PixelFormatGbrp14Le = PixelFormat(C.AV_PIX_FMT_GBRP14LE)
PixelFormatGbrp16Be = PixelFormat(C.AV_PIX_FMT_GBRP16BE)
PixelFormatGbrp16Le = PixelFormat(C.AV_PIX_FMT_GBRP16LE)
PixelFormatGbrp9Be = PixelFormat(C.AV_PIX_FMT_GBRP9BE)
PixelFormatGbrp9Le = PixelFormat(C.AV_PIX_FMT_GBRP9LE)
PixelFormatGbrpf32Be = PixelFormat(C.AV_PIX_FMT_GBRPF32BE)
PixelFormatGbrpf32Le = PixelFormat(C.AV_PIX_FMT_GBRPF32LE)
PixelFormatGray10Be = PixelFormat(C.AV_PIX_FMT_GRAY10BE)
PixelFormatGray10Le = PixelFormat(C.AV_PIX_FMT_GRAY10LE)
PixelFormatGray12Be = PixelFormat(C.AV_PIX_FMT_GRAY12BE)
PixelFormatGray12Le = PixelFormat(C.AV_PIX_FMT_GRAY12LE)
PixelFormatGray14Be = PixelFormat(C.AV_PIX_FMT_GRAY14BE)
PixelFormatGray14Le = PixelFormat(C.AV_PIX_FMT_GRAY14LE)
PixelFormatGray16Be = PixelFormat(C.AV_PIX_FMT_GRAY16BE)
PixelFormatGray16Le = PixelFormat(C.AV_PIX_FMT_GRAY16LE)
PixelFormatGray8 = PixelFormat(C.AV_PIX_FMT_GRAY8)
PixelFormatGray8A = PixelFormat(C.AV_PIX_FMT_GRAY8A)
PixelFormatGray9Be = PixelFormat(C.AV_PIX_FMT_GRAY9BE)
PixelFormatGray9Le = PixelFormat(C.AV_PIX_FMT_GRAY9LE)
PixelFormatGrayf32Be = PixelFormat(C.AV_PIX_FMT_GRAYF32BE)
PixelFormatGrayf32Le = PixelFormat(C.AV_PIX_FMT_GRAYF32LE)
PixelFormatMediacodec = PixelFormat(C.AV_PIX_FMT_MEDIACODEC)
PixelFormatMmal = PixelFormat(C.AV_PIX_FMT_MMAL)
PixelFormatMonoblack = PixelFormat(C.AV_PIX_FMT_MONOBLACK)
PixelFormatMonowhite = PixelFormat(C.AV_PIX_FMT_MONOWHITE)
PixelFormatNb = PixelFormat(C.AV_PIX_FMT_NB)
PixelFormatNone = PixelFormat(C.AV_PIX_FMT_NONE)
PixelFormatNv12 = PixelFormat(C.AV_PIX_FMT_NV12)
PixelFormatNv16 = PixelFormat(C.AV_PIX_FMT_NV16)
PixelFormatNv20Be = PixelFormat(C.AV_PIX_FMT_NV20BE)
PixelFormatNv20Le = PixelFormat(C.AV_PIX_FMT_NV20LE)
PixelFormatNv21 = PixelFormat(C.AV_PIX_FMT_NV21)
PixelFormatOpencl = PixelFormat(C.AV_PIX_FMT_OPENCL)
PixelFormatP010Be = PixelFormat(C.AV_PIX_FMT_P010BE)
PixelFormatP010Le = PixelFormat(C.AV_PIX_FMT_P010LE)
PixelFormatP016Be = PixelFormat(C.AV_PIX_FMT_P016BE)
PixelFormatP016Le = PixelFormat(C.AV_PIX_FMT_P016LE)
PixelFormatPal8 = PixelFormat(C.AV_PIX_FMT_PAL8)
PixelFormatQsv = PixelFormat(C.AV_PIX_FMT_QSV)
PixelFormatRgb0 = PixelFormat(C.AV_PIX_FMT_RGB0)
PixelFormatRgb24 = PixelFormat(C.AV_PIX_FMT_RGB24)
PixelFormatRgb4 = PixelFormat(C.AV_PIX_FMT_RGB4)
PixelFormatRgb444Be = PixelFormat(C.AV_PIX_FMT_RGB444BE)
PixelFormatRgb444Le = PixelFormat(C.AV_PIX_FMT_RGB444LE)
PixelFormatRgb48Be = PixelFormat(C.AV_PIX_FMT_RGB48BE)
PixelFormatRgb48Le = PixelFormat(C.AV_PIX_FMT_RGB48LE)
PixelFormatRgb4Byte = PixelFormat(C.AV_PIX_FMT_RGB4_BYTE)
PixelFormatRgb555Be = PixelFormat(C.AV_PIX_FMT_RGB555BE)
PixelFormatRgb555Le = PixelFormat(C.AV_PIX_FMT_RGB555LE)
PixelFormatRgb565Be = PixelFormat(C.AV_PIX_FMT_RGB565BE)
PixelFormatRgb565Le = PixelFormat(C.AV_PIX_FMT_RGB565LE)
PixelFormatRgb8 = PixelFormat(C.AV_PIX_FMT_RGB8)
PixelFormatRgba = PixelFormat(C.AV_PIX_FMT_RGBA)
PixelFormatRgba64Be = PixelFormat(C.AV_PIX_FMT_RGBA64BE)
PixelFormatRgba64Le = PixelFormat(C.AV_PIX_FMT_RGBA64LE)
PixelFormatUyvy422 = PixelFormat(C.AV_PIX_FMT_UYVY422)
PixelFormatUyyvyy411 = PixelFormat(C.AV_PIX_FMT_UYYVYY411)
PixelFormatVaapi = PixelFormat(C.AV_PIX_FMT_VAAPI)
PixelFormatVdpau = PixelFormat(C.AV_PIX_FMT_VDPAU)
PixelFormatVideotoolbox = PixelFormat(C.AV_PIX_FMT_VIDEOTOOLBOX)
PixelFormatXyz12Be = PixelFormat(C.AV_PIX_FMT_XYZ12BE)
PixelFormatXyz12Le = PixelFormat(C.AV_PIX_FMT_XYZ12LE)
PixelFormatY400A = PixelFormat(C.AV_PIX_FMT_Y400A)
PixelFormatYa16Be = PixelFormat(C.AV_PIX_FMT_YA16BE)
PixelFormatYa16Le = PixelFormat(C.AV_PIX_FMT_YA16LE)
PixelFormatYa8 = PixelFormat(C.AV_PIX_FMT_YA8)
PixelFormatYuv410P = PixelFormat(C.AV_PIX_FMT_YUV410P)
PixelFormatYuv411P = PixelFormat(C.AV_PIX_FMT_YUV411P)
PixelFormatYuv420P = PixelFormat(C.AV_PIX_FMT_YUV420P)
PixelFormatYuv420P10Be = PixelFormat(C.AV_PIX_FMT_YUV420P10BE)
PixelFormatYuv420P10Le = PixelFormat(C.AV_PIX_FMT_YUV420P10LE)
PixelFormatYuv420P12Be = PixelFormat(C.AV_PIX_FMT_YUV420P12BE)
PixelFormatYuv420P12Le = PixelFormat(C.AV_PIX_FMT_YUV420P12LE)
PixelFormatYuv420P14Be = PixelFormat(C.AV_PIX_FMT_YUV420P14BE)
PixelFormatYuv420P14Le = PixelFormat(C.AV_PIX_FMT_YUV420P14LE)
PixelFormatYuv420P16Be = PixelFormat(C.AV_PIX_FMT_YUV420P16BE)
PixelFormatYuv420P16Le = PixelFormat(C.AV_PIX_FMT_YUV420P16LE)
PixelFormatYuv420P9Be = PixelFormat(C.AV_PIX_FMT_YUV420P9BE)
PixelFormatYuv420P9Le = PixelFormat(C.AV_PIX_FMT_YUV420P9LE)
PixelFormatYuv422P = PixelFormat(C.AV_PIX_FMT_YUV422P)
PixelFormatYuv422P10Be = PixelFormat(C.AV_PIX_FMT_YUV422P10BE)
PixelFormatYuv422P10Le = PixelFormat(C.AV_PIX_FMT_YUV422P10LE)
PixelFormatYuv422P12Be = PixelFormat(C.AV_PIX_FMT_YUV422P12BE)
PixelFormatYuv422P12Le = PixelFormat(C.AV_PIX_FMT_YUV422P12LE)
PixelFormatYuv422P14Be = PixelFormat(C.AV_PIX_FMT_YUV422P14BE)
PixelFormatYuv422P14Le = PixelFormat(C.AV_PIX_FMT_YUV422P14LE)
PixelFormatYuv422P16Be = PixelFormat(C.AV_PIX_FMT_YUV422P16BE)
PixelFormatYuv422P16Le = PixelFormat(C.AV_PIX_FMT_YUV422P16LE)
PixelFormatYuv422P9Be = PixelFormat(C.AV_PIX_FMT_YUV422P9BE)
PixelFormatYuv422P9Le = PixelFormat(C.AV_PIX_FMT_YUV422P9LE)
PixelFormatYuv440P = PixelFormat(C.AV_PIX_FMT_YUV440P)
PixelFormatYuv440P10Be = PixelFormat(C.AV_PIX_FMT_YUV440P10BE)
PixelFormatYuv440P10Le = PixelFormat(C.AV_PIX_FMT_YUV440P10LE)
PixelFormatYuv440P12Be = PixelFormat(C.AV_PIX_FMT_YUV440P12BE)
PixelFormatYuv440P12Le = PixelFormat(C.AV_PIX_FMT_YUV440P12LE)
PixelFormatYuv444P = PixelFormat(C.AV_PIX_FMT_YUV444P)
PixelFormatYuv444P10Be = PixelFormat(C.AV_PIX_FMT_YUV444P10BE)
PixelFormatYuv444P10Le = PixelFormat(C.AV_PIX_FMT_YUV444P10LE)
PixelFormatYuv444P12Be = PixelFormat(C.AV_PIX_FMT_YUV444P12BE)
PixelFormatYuv444P12Le = PixelFormat(C.AV_PIX_FMT_YUV444P12LE)
PixelFormatYuv444P14Be = PixelFormat(C.AV_PIX_FMT_YUV444P14BE)
PixelFormatYuv444P14Le = PixelFormat(C.AV_PIX_FMT_YUV444P14LE)
PixelFormatYuv444P16Be = PixelFormat(C.AV_PIX_FMT_YUV444P16BE)
PixelFormatYuv444P16Le = PixelFormat(C.AV_PIX_FMT_YUV444P16LE)
PixelFormatYuv444P9Be = PixelFormat(C.AV_PIX_FMT_YUV444P9BE)
PixelFormatYuv444P9Le = PixelFormat(C.AV_PIX_FMT_YUV444P9LE)
PixelFormatYuva420P = PixelFormat(C.AV_PIX_FMT_YUVA420P)
PixelFormatYuva420P10Be = PixelFormat(C.AV_PIX_FMT_YUVA420P10BE)
PixelFormatYuva420P10Le = PixelFormat(C.AV_PIX_FMT_YUVA420P10LE)
PixelFormatYuva420P16Be = PixelFormat(C.AV_PIX_FMT_YUVA420P16BE)
PixelFormatYuva420P16Le = PixelFormat(C.AV_PIX_FMT_YUVA420P16LE)
PixelFormatYuva420P9Be = PixelFormat(C.AV_PIX_FMT_YUVA420P9BE)
PixelFormatYuva420P9Le = PixelFormat(C.AV_PIX_FMT_YUVA420P9LE)
PixelFormatYuva422P = PixelFormat(C.AV_PIX_FMT_YUVA422P)
PixelFormatYuva422P10Be = PixelFormat(C.AV_PIX_FMT_YUVA422P10BE)
PixelFormatYuva422P10Le = PixelFormat(C.AV_PIX_FMT_YUVA422P10LE)
PixelFormatYuva422P16Be = PixelFormat(C.AV_PIX_FMT_YUVA422P16BE)
PixelFormatYuva422P16Le = PixelFormat(C.AV_PIX_FMT_YUVA422P16LE)
PixelFormatYuva422P9Be = PixelFormat(C.AV_PIX_FMT_YUVA422P9BE)
PixelFormatYuva422P9Le = PixelFormat(C.AV_PIX_FMT_YUVA422P9LE)
PixelFormatYuva444P = PixelFormat(C.AV_PIX_FMT_YUVA444P)
PixelFormatYuva444P10Be = PixelFormat(C.AV_PIX_FMT_YUVA444P10BE)
PixelFormatYuva444P10Le = PixelFormat(C.AV_PIX_FMT_YUVA444P10LE)
PixelFormatYuva444P16Be = PixelFormat(C.AV_PIX_FMT_YUVA444P16BE)
PixelFormatYuva444P16Le = PixelFormat(C.AV_PIX_FMT_YUVA444P16LE)
PixelFormatYuva444P9Be = PixelFormat(C.AV_PIX_FMT_YUVA444P9BE)
PixelFormatYuva444P9Le = PixelFormat(C.AV_PIX_FMT_YUVA444P9LE)
PixelFormatYuvj411P = PixelFormat(C.AV_PIX_FMT_YUVJ411P)
PixelFormatYuvj420P = PixelFormat(C.AV_PIX_FMT_YUVJ420P)
PixelFormatYuvj422P = PixelFormat(C.AV_PIX_FMT_YUVJ422P)
PixelFormatYuvj440P = PixelFormat(C.AV_PIX_FMT_YUVJ440P)
PixelFormatYuvj444P = PixelFormat(C.AV_PIX_FMT_YUVJ444P)
PixelFormatYuyv422 = PixelFormat(C.AV_PIX_FMT_YUYV422)
PixelFormatYvyu422 = PixelFormat(C.AV_PIX_FMT_YVYU422)
)
// https://ffmpeg.org/doxygen/7.0/pixdesc_8c.html#ab92e2a8a9b58c982560c49df9f01e47e
func (f PixelFormat) Name() string {
return C.GoString(C.av_get_pix_fmt_name((C.enum_AVPixelFormat)(f)))
}
func (f PixelFormat) String() string {
return f.Name()
}
func (f PixelFormat) Descriptor() *PixelFormatDescriptor {
return newPixelFormatDescriptorFromC(C.av_pix_fmt_desc_get((C.enum_AVPixelFormat)(f)))
}
// https://ffmpeg.org/doxygen/7.0/pixdesc_8c.html#a925ef18d69c24c3be8c53d5a7dc0660e
func FindPixelFormatByName(name string) PixelFormat {
cn := C.CString(name)
defer C.free(unsafe.Pointer(cn))
return PixelFormat(C.av_get_pix_fmt(cn))
}
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